Communication
How to tell if a phone is a landline cellular VOIP
This question occurs to me regularly because you find a number on Craigslist or miss a call and want to text in return but you do not know if they can receive a text.
This webpage seems to be able to tell you:
Communication
Software: CryptoCat
Note: This software uses a central website to manage the accounts and perform connection moniker to moniker. In that it is vulnerable. Research Links Wikipedia: CryptoCat https://crypto.cat/ Nadim Kobeissi
Communication
WebRTC Real Time Communication tutorial
Research Links BlogGeek WebRTC project WebRTC codelab
Communication
WiFi Connected Serial Communication
Research Links Mouser: XBee WiFi Embedded RF Module XBee WiFi DataSheet